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Dissecting a DEFECT (in a tree) 

arboristBlairGlenn
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I took the time to dissect a significant defect in a tree to better understand the extent of this weakness. Looking at it from the outside, lead me to believe that this tree was hazardous. Until I cut into it, I did not fully realize just how bad it was. I started at the top of the main crotch and took 6 inch crosscuts all the way down to the base. I photographed and shot video at each increment.
I also understand that a weakness in a tree is going to be different depending on the type of tree. This particular variety is a cultivar with recognized structural defects common to this species. Another type of tree will be much different in the potential for extreme weakness such as this even with similar external observations of defects.
What I have learned from this dissection tells me a lot about what can happen with this type of tree but I must be careful not to jump to conclusions about other varieties of trees. I learned a lot from this inspection and hope that you find this valuable as well.

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9 сен 2024

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Комментарии : 99   
@djensen5836
@djensen5836 7 лет назад
You have forever changed the way I look at trees. Every time I see a tree, I start inspecting its root zone for manmade structures and examine the trunk and branches for evidence of poor pruning practices
@rdaltry777
@rdaltry777 7 лет назад
I think the best part of your videos is the obvious passion you have for what you do. In that, you are a lucky man.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Roger DeeDodger thank you for that. Merry Christmas to you
@johnlord8337
@johnlord8337 7 лет назад
Same old story of non-maintenance by the home owner, allowing additional main trunks to grow up and merge (but never fully join as 1 integral trunk. Happened with all those lower branches early in the tree's life (10-15 years old) up until it was cut down. Some of those flush cuts are the same when I did the City of Fremont's park of the old NorCal Nursery (old Roeding company property) fruit yard (original Luther Burbank Santa Rosa plum orchard) and apple trees. Complete heartwood interior rot I wanted to clean out, then put in concrete (not wise) to strengthen these old girls (1900s). Reason why I get flipping angry at homeowners and landscapers who plant trees too close to houses, flush cuttings, non-maintenace of their trees over their lifetime, ... and preventative pruning for double/multiple main trunks, crossovers, broken/weak limbs, downward branches, etc etc..
@earlrumble1692
@earlrumble1692 7 лет назад
Again, I so wish I were in your area to harvest some major nice bowl blanks from your work. I tend to cringe when I see you chipping up the big limbs. As far as the tree was concerned you were totally correct in taking it down...a disaster waiting to happen.
@MichaelFlester
@MichaelFlester 7 лет назад
Thanks for documenting this. Super helpful.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
I too, learned a lot from taking the time to piece this out small.
@lucfournier3939
@lucfournier3939 7 лет назад
I must agree that many times I ve climbed trees that were so so. .. but in spare time I brought s amples home and after examinaition I realized that I was (dum).now when Doing à qu ôte I spot danger and I am sa fer thanks
@courtneesdad
@courtneesdad 7 лет назад
Very interesting. Im getting a free education watching your videos and not getting much else done around here because I cant stop watching. You guys see a dying dead tree, I see some beautiful grain wood lol The more you cut the more i see beautiful grain. He should have kept a few pieces and made pen blanks as souvenirs
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
I do make pens from time to time but we get so much wood that we become overwhelmed by it all. I wish you could come get some!
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Randy Reed I did save some of this ash for ax handles
@CONCERTMANchicago
@CONCERTMANchicago 7 лет назад
What an opportunity! Picture of tree when young would be interesting to see. I am regularly confused by experts that perform Resistograph or Arborsonic Decay Detector work, but never follow up later with real observations of same trees pieced out insides. Since I was a kid, local Arborist would put aside any unique portions of limbs or trunks they discovered for me. Then later when I learned that Dr. Shigo had been doing same for decades, realized I might not be crazy after all. Hey BG, except for this Modesto...notice how an Ash can bundle multiple stems together? Compared to other species that would instead, have problems merging with included bark. I have sometimes discovered a trunk of a single stemmed Ash tree, produced from multiple stems when still young. Crazy.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
CONCERTMANchicago do you have this tree in your area?
@PaddyPatrone
@PaddyPatrone 7 лет назад
Really interesting video, thanks Blair!
@TheTreeSeer
@TheTreeSeer 7 лет назад
Good demonstration of how a large wound on a codominant leads to trouble. Any cut over 4" diameter should be reconsidered. There's no such thing as a proper removal cut on a codom like that. Codoms do not have collars. But were the owners really told that the tree would need to be cut back "really hard", AND cabled, AND still know the weakness would still be there? Cuts over 4" are really hard pruning, but much of the load could have been removed with smaller cuts. The weakness would be mitigated enough by pruning 20-30% off, OR it could have been cabled with only light pruning. Research shows that 15% off the end can lessen loading by 50%. You're right; this is a sad story. If the owners had a more detailed idea about pruning specifications, or the 30+ year lifespan for cabling components, they may well have hired you to maintain the tree for the rest of your lives.
@mattyduncan4679
@mattyduncan4679 6 лет назад
Man. You make some immensely informative videos. Genuinely. Thank you for them.
@arboristBlairGlenn
@arboristBlairGlenn 6 лет назад
Matty Duncan thank you
@jenniferwhitewolf3784
@jenniferwhitewolf3784 7 лет назад
Bacon! Amazing internals.. bugs, heart rot, splits.. educational! A section of that multi-way split would make an amazing table top.
@cobaine1376
@cobaine1376 7 лет назад
Great follow up to your original story.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
I glad you recognized this as a follow up
@troels1979
@troels1979 7 лет назад
Very interesting. Thanks!
@agentbertram4769
@agentbertram4769 7 лет назад
I don't know how you can put up with all that sunshine Blair. It must be awful! If you ever want a holiday in Scotland (where it is misty most of the time and raining the rest of the time) just let me know, OK. We live in remote Argyll where the view is lovely... when you can see it. :O( Interesting and informative video though, all of your videos are excellent. :O)
@wandawTube
@wandawTube 6 лет назад
If I missed a related video prior to this one, I apologize. How did you cut this tree down? Did you remove it from the top down and/or use your bucket truck? If someone tried to fell this tree, with the splits in the base, would it be likely to barber chair? I'm trying to learn how to recognize trees that are most likely to barber chair (if that's possible).
@arboristBlairGlenn
@arboristBlairGlenn 6 лет назад
wandaw we took it down from the top half in pieces. Barber chair happens if there are ring shakes or interior splits and voids. Also can happen if you don’t make the back directional wedge cut first.
@TheKopakah
@TheKopakah 3 года назад
9:10 Do you think those where roots from the tree? I've never seen adventitious roots like that before
@SuperSkyback
@SuperSkyback 7 лет назад
Thanks for video, Blair! How do you think, may be some supporting system like cabling would good for that tree? And what do you think about same problem in oaks? I was asked to prune two big oaks with same signs on bark, one was lightning striked. And i suspect big decay in main trank. I remowed all dead and diyng branches, but not sure what to reccomend, leave or remove that trees. They more than 1,5 m in diameter and 30 meters height.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Valentine Skyback different species behave differently. This tree had to go
@KarlBunker
@KarlBunker 7 лет назад
Really interesting.
@PatrickWagz
@PatrickWagz 6 лет назад
very interesting and educational
@arboristBlairGlenn
@arboristBlairGlenn 6 лет назад
Patrick Wagz thanks Patrick, I am proud of this video. I learned a lot doing it. Every Tree worker should take the time to really open up the tree and see what is going on.
@michaeldougfir9807
@michaeldougfir9807 7 лет назад
Very telling. More about CODIT. Thank you.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
I'm glad you want to hear more about Compartmentalization Of Decay in Trees. Because my channel is about balance of education, if I get too complex, I start losing subscribers. Sadly, many people just click off when things get a bit technical.
@djensen5836
@djensen5836 7 лет назад
These inspection and diagnosis videos are extremely interesting. A few suggestions that might permit you to explain CODIT and other advanced topics: - put the Tree Science in the video, but embed a "SkipTheDetails" ad link that just jumps forward in the video past the details. - cut to a picture of a big yellow hazard sign: WARNING: Tree Science Ahead!, then go into the details - at the end of the simple video, fade to black for 5 seconds, then come back in with the Tree Science. (it's like staying in the movie theater after the credits finish to see the outtakes and extra scenes) - keep the first video simple, but link it to a second video about the same tree titled: ("Part II Root Of The Problem"). In the second video, max out on the Tree Science. Provide a link to the first (simple) video for viewers who landed on the second video by mistake.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
D Jensen My biggest problem is time. I generally am "winging it" with videos on what presents itself as worth a production. I agree that I need to plan better and get a bit more detailed. I could use some help
@bobputman5947
@bobputman5947 7 лет назад
to bad those cookies could not be used for some table tops, or use 3 or 4 of them and connect them , to make like a waterfall type table....but as you said it was a wise decision to take that tree down, it was a disaster waiting to happen...
@ColinTonkasdad
@ColinTonkasdad 7 лет назад
very interesting, and well worth doing... so simple looking crack .. but thanks from scotland .
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Colin Tonkasdad you never know until you open it up
@SquirrelSniper138
@SquirrelSniper138 7 лет назад
+arboristBlairGlenn nice production... I even had Quincey theme tunes in the background
@wrgnstjnblgnwrn6162
@wrgnstjnblgnwrn6162 7 лет назад
So, is there any way to figure out when in the growthcycle the split in the trunk developed? Or was the foundation of the crack there from when it ws a sapling?
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
wrgnstjn blgnwrn Modesto Ash often split. When? Tough call
@johnl4540
@johnl4540 7 лет назад
Is there any known reason Modesto Ash is prone to this type of failure? I see them frequently in my area but don't understand why they're prone to failure after only 30-40 years.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
They are an Ash cultivar. Many cultivars have inherent weaknesses. Look at the Bradford pear for example. They self destruct. They too are developed cultivars.
@erichaskell
@erichaskell 7 лет назад
A metaphor in many ways.
@healey100austin
@healey100austin 7 лет назад
Just wondering,could the tree be 'banded' with steel straps? being a scale modeller there are ways to disguise it..Or is it too far gone?
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
healey100austin can't stop decay. Band it to prolong, yes if the leverage isn't too much on the limbs.
@spencergregory8049
@spencergregory8049 Год назад
I'm from the UK and I think Psuedoacacia robinina has very similar bark structure and are prone to splitting. Also what are your thoughts on Pinus radiata?
@arboristBlairGlenn
@arboristBlairGlenn Год назад
Monterey Pine is a tree that is going extinct from insects and pitch canker disease in our area
@danr5105
@danr5105 7 лет назад
Can you speak more about this "soil" found in the cracks? Is it soil blown in from the outside or is it the tree decomposing?
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Dan R good question, don't really know
@thegreatpotatokitty8196
@thegreatpotatokitty8196 7 лет назад
tree and foreign bits decomposing, usually bugs help decomposition a lot its mostly bug poop. we have cicada larvae in most our rotted unions and its full of what looks like worm castings. amazing for the garden.
@chamness964
@chamness964 7 лет назад
I have a Hackberry and it has multi stems coming off one stump. And the customer has requested me to take some of the weight off the tree that's going towards his house. How much is to much. I live in mid Missouri.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Shawn Stick Chamness need to see the tree
@chamness964
@chamness964 7 лет назад
arboristBlairGlenn Do you have a e-mail?
@63256325N
@63256325N 7 лет назад
Am I mistaken or is this a revisit? It looks very familiar. What was holding that three together? I'm truly shocked it didn't break apart long ago. Amazing! Thanks for the video.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Duncan MacKenzie I showed this tree before the job so it is a follow up
@SquirrelSniper138
@SquirrelSniper138 7 лет назад
Your answer... An inch of cambium and the last few seasons of sapwood. I bet if it had consecutive dry spells the process would sped to its demise
@63256325N
@63256325N 7 лет назад
It's just amazes me that just that little bit held all that weight from falling. I mean, how many tons of branches, main and off shoot. Nature, it's a wonder.
@tommy1273
@tommy1273 7 лет назад
Is this not 3 or 4 trees that have grown together (rather than one that has split)? Just interested.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
tommy1273 no, Modesto Ash has a growth defect that leads to splits
@ronaldgaytan698
@ronaldgaytan698 7 лет назад
Great video. Nice bucket truck any videos of you using it. What's the height reach
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Ronald Gaytan I've owned this bucket for 20 years but just transferred it to this Dodge. Very convienent
@jamesross451
@jamesross451 7 лет назад
The silver maple in my front yard finally died... it had been through so much too, even being topped.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
James Ross Solver Maples can be problems
@staybrushtree8394
@staybrushtree8394 7 лет назад
awesome video
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Thank You
@alexmartin6263
@alexmartin6263 7 лет назад
Hey there, I liked the look of the bucket on the pick up truck. Did you buy it like that or had it put on after purchase? And if so, by what company? Thanks, love the channel - Alex
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Alex Martin Thanks Alex, I built up that little one ton. Found a deal on a 1997 Dodge (only 24 k miles on it!), I had the bucket on another truck that died. Bucket is called a Hydro Grupert. Goes up 41 feet but gets into tight spots.
@alexmartin6263
@alexmartin6263 7 лет назад
How do you like it?
@alexmartin6263
@alexmartin6263 7 лет назад
That's just what I'm looking for. Awkward spots on trees that are smaller, otherwise I'd be climbing
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Alex Martin this is my rig. I keep it set up with all my personal gear. Love it!
@alexmartin6263
@alexmartin6263 7 лет назад
Great! I'll take a look at them up here in Canada
@billyvancleave1
@billyvancleave1 7 лет назад
do you replant a tree when you cut one down
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
billy spencer sometimes I do it it but I really try to encourage the client to do it. If YOU plant a tree, YOU, pay attention to it. The tree does better😊
@damondiehl5637
@damondiehl5637 7 лет назад
Those cookies were ART! So sad to see you throw them like that.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Damon Diehl hardly
@willemkossen
@willemkossen 7 лет назад
Poor tree, but nice wood for woodturning!
@billpotter8714
@billpotter8714 7 лет назад
So how do get chains so sharp?
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Bill Potter magic
@billpotter8714
@billpotter8714 7 лет назад
Do a video please
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Bill Potter a video on editing tricks?
@billpotter8714
@billpotter8714 7 лет назад
arboristBlairGlenn No, on getting chain saws sharp. It's all in the tools Blair😃
@Poebat
@Poebat 7 лет назад
where are the roots from?
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Poebat the Privet
@CONCERTMANchicago
@CONCERTMANchicago 7 лет назад
Sometimes a tree can compartmentalize so well, that it produces a new inner surface of bark down center of trunk, surrounding void of wood.
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
CONCERTMANchicago I really believe these were all from that Privet sprout that I pulled out in the beginning
@TheDisorderly1
@TheDisorderly1 7 лет назад
I think it was a wise decision too. Still sad.
@CosmicStargoat
@CosmicStargoat 5 лет назад
Tree Forensics!
@evieroberts7810
@evieroberts7810 7 лет назад
Watching the bacon cooking when I'm hungry.....bad idea! 😕
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
evie Roberts gets everyone's attention!
@larchejacquesclarel9451
@larchejacquesclarel9451 7 лет назад
holy shit. with time it would have fell on people or passer by :(
@larchejacquesclarel9451
@larchejacquesclarel9451 7 лет назад
I wonder what could have caused this cracking ???
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
Started with a bad cut but these defects are common in this species
@James-uc2nd
@James-uc2nd 7 лет назад
stop talking about "cracks"
@arboristBlairGlenn
@arboristBlairGlenn 7 лет назад
You lost me?
@RickF1558
@RickF1558 5 лет назад
@@arboristBlairGlenn I believe it was a crude butt joke.
@djensen5836
@djensen5836 7 лет назад
A while ago you asked about how to emulate Casey Neistat's success.... Have you considered spinning off some of your content as new a channel that contains a little more drama. You could team up with a hyper Australian (nicknamed "Snap" Thompson ) as your sidekick that attracts subscribers... Troys are Loyf! Bee koynd tooya Troys! T'day weah takin' a close look at this foyn specimen. Ain't she a byoot! Oy, but byootee - it's only on the soyface. Thez DAINJER lurkin' in that trunk! (you get the idea) Every episode has the same signoff encouraging people to take a closer look at the trees around them. just an idea.... It's be better than most programming on TV these days....
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